I have an Azola Mini-Baby...and can vouch for the superb construction and playability of Steve's basses. They are also a pleasure to deal with! I do not have any experience with his acoustic bass versions.

I'd go with the Eminence since it's a little less bulkier and costly than the Eurocoustic.

Both get you within the ballpark of an upright bass in terms of they way they feel and sound, though, and the Azola looks sexier - well, about as sexy as an EUB can be.

One thing to note - I see that the Azola doesn't appear to have an upper bout "emulator" like the Eminence does. This could affect playability, as that would put the instrument closer to the player than a normal DB.